Power plants – Pressure fluid source and motor – With means purging – cleaning or separating undesirables from...
Patent
1975-07-02
1976-08-31
Geoghegan, Edgar W.
Power plants
Pressure fluid source and motor
With means purging, cleaning or separating undesirables from...
60477, 60DIG10, 137587, F15B 2104
Patent
active
039771890
ABSTRACT:
A closed-loop hydrostatic drive unit having a variable displacement fluid pump driven by an electric motor for generating high-pressure fluid adapted to be communicated to a fluid motor and returned to the fluid pump via a high-pressure filter. The closed-loop hydrostatic drive unit is mounted to a rectangularly-shaped reservoir housing having upper and bottom surfaces connected by side walls and end walls to define therein a chamber for the storage of fluid at a low pressure which is communicated to the fluid pump via a charge pump and suitable conduits and check valves. In a first embodiment of the invention the interior of the reservoir housing is divided by means of a partition to define the fluid-holding chamber, while the remaining portion of the reservoir housing defines a separate chamber for the mounting and storage of the high-pressure filter and/or other selected fluid power components. In a second embodiment of the invention the housing walls define the fluid holding chamber while the high-pressure fluid filter housing extends into and is stored within the low-pressure fluid holding chamber.
REFERENCES:
patent: 2559125 (1951-07-01), Lee
patent: 2942581 (1960-06-01), Gaffney
patent: 3060688 (1962-10-01), Gondek
patent: 3279172 (1966-10-01), Kudo et al.
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